Plumber&#39;s fitting.



Patented Dec. 17, IQDI.

J. L. FRUIN 81. W. J. WALKER.

PLUMBEBS FITTING.

(Application filedflay 18, 1901.)

(No Model.)

UNITED STATES P TENT rricno JOHN L. FRUIN AND WILLIAMI J. WVALKER, OF CHICAGO, ILLINOIS.

PLUMBERS FlTTlN'G.

SPECIFICATION forming part of Letters Patent No, 689,045, dated December 17, 1901.

Application filed May 16, 1901. Serial No. 60,533. (No model.)

To all whom, it may concern:

Be it known that we, J OHN L. FRUIN and WILLIAM J. WALKER, citizens of the United States, and residents of Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Plumbers Fittings for Use in Plumbing Systems, of which the following is a specification.

This invention relates to fittings for use in plumbing systems, the same being more especially adapted for use in association witha plumbing system forming thesubject-matter of our former application for patent on a plumbing system, Serial No.712,9ll,filed April 13, 1899, allowed April 26, 1901. The plumbing system referred to as forming the subjectmatter of the said application comprises a vertical combination waste and vent pipe, open to the atmosphere at its upper end, a revent-pipe extending parallel therewith and also open to the atmosphere atits upper end, and suitable branch connections located at intervals along said pipes, said connections including as an element thereof a special form of branched fitting adapted to be included in the waste-pipe, said fitting having and integral branch, which latter is tapped laterally by the waste-pipe from the adjacent fixtures.

Our present invention resides in a special construction of fitting designed to be located at the lower end of the revent-pipe of such a system as we have described, said fitting having its main tubular section integrally offset at its lower end in a downwardly-slanting direction and thence extending parallel with the main tubular section to form a vertical union with the branch of the waste-pipe fitting in such a manner as to conduce to an economy of space required between the waste and revent pipes, and further constructed in such a manner as to facilitate the venting and siphon-breaking function of the reventpipe with a minimum of friction and obstruction to the air or gases flowing therethrough,

Our invention is illustrated in the accompanying drawings, in whichin accordance with our invention and adapted to connect the lower end of the revent-pipe with the waste or soil pipe.

In the drawings, A represents a vertical waste or soil pipe, which is usually located in one of the walls or partitions of a building, the same being open to the atmosphere at its upper end above the roof of the building, said waste-pipe thus having a venting function relatively to the several fixtures discharging at various levels thereinto.

B indicates a revent-pipe located adjacent to and parallel with the waste-pipe A and having its upper end either extending above the roof and open to the atmosphere, like the pipe A, or preferably having its upper end tapping the upper portion of pipe A and communicating with the atmospherethrough the latter in the manner shown.

In the pipe A, at distances apart corresponding to the several floors of the building, are located a series of fittings O, constructed as shown in the pending application hereinabove referred to and each comprising, essentially, a straight portion 0, which when the fitting is in place forms a continuous part of the waste or soil pipe, and an upwardlyinclined branch 0', formed integral with the straight portion 0, and said branch 0 being provided with a lateral aperture 0 into which may be tapped the drain-pipe from an adjacent fixture.

Between the several sections of the reventpipeB are interposed a series of fittings which are designated as an entirety by D, each of which comprises a straight portion d, which when the fitting is in place forms a continuous part of the revent-pipe B, and a pair of oppositely-disposed integral lateral branches d and D connected with the straight por tion 61 in a particular manner, all as hereinafter more fully described; The straight portion 01 of the fitting is provided at its upper end with a hub or enlarged collar (1 which is adapted to receive the adjacent lower end of the superposed revent-pipe section and to be connected therewith by a suitable lead-callged joint, the lower end of the fitting entering a similar cellar cl on the upper end of the subjacent revent pipe section. The integral branch (1 taps the fitting near the upper end thereof, said branch being extended outwardly a short distance and then curved downwardly parallel with the waste and revent pipes, its lower end being suitably calked into the upper end of the branch 0 offittihg O. The opposite lateral extension at of the fitting D is adapted to be connected through suitable pipes E and F and elbow G with the upper bend of a trap H in the drain-pipe I, leading from an adjacent fixture, as a bath-tub or bowl K, in order to vent said trap and prevent the siphoning thereof in a well-understood manner.

Referring now more particularly to the special construction of fitting forming the subject-matter of our present invention and which istshown in isolated detail in Fig. 2 of the drawings, it will be observed that the straight principal body portion at of the fitting is integrally offset at its lower end and thence extends parallel with the main section of the fitting downwardly, as shown at 61 to form a vertical union with the curved branch of the soil-pipe fitting O. Preferably, also, this fitting is supplied with the lateral branch (1, hereinabove described in connection with the fittings interposed between the sections of the revent-pipe; but this latter feature does not constitute an essential element of our invention.

Fittings occupying the general relation hereinabove described to the other parts of the system have heretofore been used in the revent-pipes of plumbing systems; but so far as we are aware no such fitting has ever been constructed provided with an integral downwardly-slanting offset extension at its lower end adapted to form a vertical union with a suitable receiving member or branch of the soil-pipe. The construction described effects a material economy of space between the revent and Waste pipes as compared with the constructions now in use and comprises in a single integral structure what has heretofore been made in a plurality of connected parts.

In such old fittings as heretofore made in commercial forms for general use wherever applicable in a plumbing system no regard has been paid, so far as we are aware, to a proper conjunction of the branch or branches with the main member of the fitting in order to effect the ventilating function therethrongh with the minimum of friction, and consequently with a maximum efiiciency. The lateral extensions of the fitting have heretofore been joined to the main body without regard to the direction of the air-current proved fitting we lead the extensions 01 and v d into the central stem or body 01 on upwardly-extending curves which are so related to the direction of flow of the air-current as to offer no obstacles in the way of sharp edges or corners for the air to get around.

A fitting for a revent-pipe formed and constructed as hereinabove described effects a marked economy in cost of manufacture as compared with fittings of this type now in use. By reason of its integral characterit effects an economy of space and enables the elements of the stack to be set much closer together, and by reason of the mode of joining the lateral extensions to the main central body in such a way as to avoid all interference with the air -'current therethrough the efficiency of the revent-pipe, and consequently the sanitary value of the entire system, is enhanced. While this fitting is well adapted for use in a system such as that set forth in our former application referred to, it is by no means limited to use in connection with such a system, but may advantageously be employed in a reVent-pipe in any other system or relative construction or arrangement of reventing where such a pipe is employed to insure the safety of the traps of the several fixtures from being siphonedi We claim as our invention A fitting adapted to be applied to the lower end of a revent-pipe of a plumbing system, said fitting comprising a main tubular section which at its lower end is integrally offset in a downwardly-slanting direction, and then extends parallel with the main tubular section to form a vertical union with one member of a suitable fitting interposed in the soil-pipe, substantially as described.

JOHN L. FRUIN. WILLIAM J. WALKER.

Witnesses:

SAMUEL N. POND, L. F. McCREA. 

